package com.zan.springcloud.service.impl;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import com.zan.springcloud.service.PaymentService;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @Author Zan
 * @Create 2023/12/16 19:07
 * @Description :
 */
@Service
public class PaymentServiceImpl implements PaymentService {

    //===========服务降级
    /**
     * 正常访问，
     * @param id
     * @return
     */
    @Override
    public String paymentInfo_OK(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + " paymentInfo_OK, id： " + id + "\t" + "(●'◡'●)哈哈~";
    }

    @Override
    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "5000") // 线程的超时时间为3s
    })
    public String paymentInfo_TimeOut(Integer id) {
        int timeNumber = 3;
//        int age = 10 / 0;
        try {
            TimeUnit.SECONDS.sleep(timeNumber);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
        return "线程池：" + Thread.currentThread().getName() + " paymentInfo_TimeOut, id： " + id + "\t" + "(●'◡'●)哈哈~" + " 耗时(秒)：" + timeNumber;
//        return "线程池：" + Thread.currentThread().getName() + " paymentInfo_TimeOut, id： " + id + "\t" + "(●'◡'●)哈哈~" + " 耗时(秒)：" + 0;
    }

    /**
     * paymentInfo_TimeOut抛异常所调用的方法
     * @param id
     * @return
     */
    public String paymentInfo_TimeOutHandler(Integer id) {
        return "线程池：" + Thread.currentThread().getName() + " paymentInfo_TimeOutHandler, 8001系统繁忙或者运行报错，请稍后再试, id： " + id + "\t" + "┭┮﹏┭┮呜呜~";
    }

    //===========服务熔断
    @Override
    @HystrixCommand(fallbackMethod = "paymentCircuitBreak_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"), // 是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"), // 请求次数
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"), // 时间窗口期/时间范围
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60") // 失败率达到多少后跳闸
    })
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {
        if (id < 0) {
            throw new RuntimeException("*****id 不能为负数");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "调用成功，流水号：" + serialNumber;
    }

    public String paymentCircuitBreak_fallback(@PathVariable("id") Integer id) {
        return "id 不能为负数，请稍后再试，/(ㄒoㄒ)/~~  id：" + id;
    }

}
